Psalms 74:15

“Thou didst cleave the fountain and the flood, etc.] That is, the rocks at Horeb and at Kadesh, from whence water flowed as out of a fountain, and became a flood, whereby the people of Israel were supplied with water in the wilderness, and also their beasts; and from this instance it may be concluded that God will not leave his people, nor suffer them to want, but will supply all their need while they are in the wilderness, and will open fountains and rivers for them, (<234117>Isaiah 41:17,18) he himself is a fountain of living water; Christ is the fountain of gardens, and the Spirit and his grace a well of living water springing up unto everlasting life: thou driedst up mighty rivers; the…”

“Thou didst cleave the fountain and the flood - That is, the source of the streams and the streams themselves. The main allusion is probably to the Jordan, and the idea is, that God had, as it were, divided all the waters, or prevented any obstruction to his people from the river in any respect; as if the waters in the very springs and fountains, and the waters in the channel of the river flowing from those springs and fountains, had been so restrained and divided that there was a safe passage through them. Joshua 3:14-17. Thou driedst up mighty rivers - Margin, “rivers of strength.” The Hebrew - איתן 'êythân - (compare Deuteronomy 21:4; Amos 5:24; 1 Kings 8:2) - means rather perennial,…”

“The flood - Thou didst by cleaving the rock, make a fountain and a stream to flow from it, for the refreshment of thy people in those dry deserts. Driedst - Jordan and the Red Sea; for the sea itself; yea, a greater sea than that, is called a river, Jon 2:3, where the Hebrew word is the same which is here used. And the same title is expressly given to the sea, by Homer, and other ancient writers. Psalms 74:16”

“74:15 springs and streams to gush forth: God provided water in the desert for his people (see 68:8-9; Exod 17:6); he dried up the Red Sea (Exod 14:21) and the Jordan River (Josh 3:17).”

“cleave: Psa 105:41; Exo 17:5, Exo 17:6; Num 20:11; Isa 48:21 flood: Jos 3:13-17; Kg2 2:8, Kg2 2:14; Isa 11:16, Isa 44:27; Hab 3:9 \*marg. Rev 16:12 mighty rivers: Heb. rivers of strength Psalms 74:16”